Hello Francesco Potortì,
Thank you for pointing to plotdecimate. It will be useful.
However, for the task at hand, plot is significantly faster than using
plotdecimate. Given the size some data records, 10^4 to 10^7 elements,
impressively fast. And, without setting the RES parameter, decimation removes
the very low duty cycle pulses which are important in the records.
Also, the main problem is unrelated to record size. All plot windows turn gray
after moving them, and sometimes after creating subsequent figures. Convincing
them to redraw usually takes some GUI interaction. While redrawing rate scales
with record size, the delay itself is not a significant problem. Disappearing
window contents is the problem.
Any suggestions?
Thank you,
M.Reich